Where did you “left” Piazza del Popolo? At your “right” temporo-parietal junction

Committeri, Giorgia; Piccardi, Laura; Galati, Gaspare; Guariglia, Cecilia

doi:10.1016/j.cortex.2015.08.009

Cited by 18 publications

(7 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the present double dissociation may be due to the derangement of navigational working memory or to a deficit in the topological imagery deficit which does not affect in any way the VP. This interpretation is consistent with previous lesion locations and disconnections observed in patients with representational neglect restricted to topological mental images (Committeri et al, 2015;Boccia et al, 2018). It is also consistent with findings from DTD patients, who seem to struggle to build a navigational plan even though they still perform well within the normal range on the ToL-16 task (Bianchini et al, 2010).…”

Section: Discussionsupporting

confidence: 91%

Travel Planning Ability in Right Brain-Damaged Patients: Two Case Reports

Bocchi

Palmiero

Boccia

et al. 2020

Front. Hum. Neurosci.

Self Cite

View full text Add to dashboard Cite

Planning ability is fundamental for goal-directed spatial navigation. Preliminary findings from patients and healthy individuals suggest that travel planning (TP)-namely, navigational planning-can be considered a distinct process from visuospatial planning (VP) ability. To shed light on this distinction, two right brain-damaged patients without hemineglect were compared with a control group on two tasks aimed at testing VP (i.e., Tower of London-16, ToL-16) and TP (i.e., Minefield Task, MFT). The former requires planning the moves to reach the right configuration of three colored beads on three pegs, whereas the latter was opportunely developed to assess TP in the navigational environment when obstacles are present. Specifically, the MFT requires participants to plan a route on a large carpet avoiding some hidden obstacles previously observed. Patient 1 showed lesions encompassing the temporoparietal region and the insula; she performed poorer than the control group on the ToL-16 but showed no deficit on the MFT. Conversely, Patient 2 showed lesions mainly located in the occipitoparietal network of spatial navigation; she performed worse than the control group on the MFT but not on the ToL-16. In both cases performances satisfied the criteria for a classical dissociation, meeting criteria for a double dissociation. These results support the idea that TP is a distinct ability and that it is dissociated from VP skills.

show abstract

Section: Discussionsupporting

confidence: 91%

Travel Planning Ability in Right Brain-Damaged Patients: Two Case Reports

Bocchi

Palmiero

Boccia

et al. 2020

Front. Hum. Neurosci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The lack of systematic tools often leads to an underestimation of imagery deficits. For example, recent studies on imagery neglect (i.e., a deficit in mental representing the left part of objects and/ or environments) show that the disorder is not as rare as generally thought (Committeri, Piccardi, Galati, & Guariglia, 2015;Guariglia, Palermo, Piccardi, Iaria, & Incoccia, 2013) and is detected with the same frequency as perceptual neglect .…”

Section: Discussionmentioning

confidence: 96%

The impact of ageing and gender on visual mental imagery processes: A study of performance on tasks from the Complete Visual Mental Imagery Battery (CVMIB)

Palermo

Piccardi

Nori

et al. 2016

Journal of Clinical and Experimental Neuropsychology

Self Cite

View full text Add to dashboard Cite

In this study we aim to evaluate the impact of ageing and gender on different visual mental imagery processes. Two hundred and fifty-one participants (130 women and 121 men; age range = 18-77 years) were given an extensive neuropsychological battery including tasks probing the generation, maintenance, inspection, and transformation of visual mental images (Complete Visual Mental Imagery Battery, CVMIB). Our results show that all mental imagery processes with the exception of the maintenance are affected by ageing, suggesting that other deficits, such as working memory deficits, could account for this effect. However, the analysis of the transformation process, investigated in terms of mental rotation and mental folding skills, shows a steeper decline in mental rotation, suggesting that age could affect rigid transformations of objects and spare non-rigid transformations. Our study also adds to previous ones in showing gender differences favoring men across the lifespan in the transformation process, and, interestingly, it shows a steeper decline in men than in women in inspecting mental images, which could partially account for the mixed results about the effect of ageing on this specific process. We also discuss the possibility to introduce the CVMIB in clinical assessment in the context of theoretical models of mental imagery.

show abstract

“…However, the TPJ, and posterior parietal regions in general, are also implicated in imagined navigation (Committeri, Piccardi, Galati & Guariglia, 2015), specifically the translation of allocentric hippocampal place representations into representation of a location into egocentric space (Boccia, Sulpizio, Palermo, Piccardi, Guariglia, & Galati, 2017). The perhaps most dramatic example for this relationship is the link between the TPJ and out-of-bodyexperiences, in which patients subjectively "see" the world (and themselves) from outside their own body.…”

Section: Discussionmentioning

confidence: 99%

Perspective taking as virtual navigation? Perceptual simulation of what others see reflects their location in space but not their gaze

2020

View full text Add to dashboard Cite

Other peoples' (imagined) visual perspectives are represented perceptually in a similar way to our own, and can drive bottom-up processes in the same way as own perceptual input (Ward, Ganis & Bach, 2019). Here we test directly whether visual perspective taking is driven by where another person is looking, or whether these perceptual simulations represent their position in space more generally. Across two experiments, we asked participants to identify whether alphanumeric characters, presented at one of eight possible orientations away from upright, were presented normally, or in their mirror-inverted form (e.g. "R" vs. "Я"). In some scenes, a person would appear sitting to the left or the right of the participant. We manipulated either between-trials (Experiment 1) or between-subjects (Experiment 2), the gaze-direction of the inserted person, such that they either (1) looked towards the to-bejudged item, (2) averted their gaze away from the participant, or (3) gazed out towards the participant (Exp. 2 only). In the absence of another person, we replicated the well-established mental rotation effect, where recognition of items becomes slower the more items are oriented away from upright (e.g. Shepard and Meltzer, 1971). Crucially, in both experiments and in all conditions, this response pattern changed when another person was inserted into the scene. People spontaneously took the perspective of the other person and made faster judgements about the presented items in their presence if the characters were oriented towards upright to them. The gaze direction of this other person did not influence these effects. We propose that visual perspective taking is therefore a general spatial-navigational ability, allowing us to calculate more easily how a scene would (in principle) look from another position in space, and that such calculations reflect the spatial location of another person, but not their gaze.

show abstract

Where did you “left” Piazza del Popolo? At your “right” temporo-parietal junction

Cited by 18 publications

References 34 publications

Travel Planning Ability in Right Brain-Damaged Patients: Two Case Reports

Travel Planning Ability in Right Brain-Damaged Patients: Two Case Reports

The impact of ageing and gender on visual mental imagery processes: A study of performance on tasks from the Complete Visual Mental Imagery Battery (CVMIB)

Perspective taking as virtual navigation? Perceptual simulation of what others see reflects their location in space but not their gaze

Contact Info

Product

Resources

About